kagadpencil
Mechanical
- Jun 15, 2004
- 38
in a duct system of ours, we had a T fitting to allow for gas flow in perpendicular direction to the main flow direction. Then we decided not to allow that flow and hence we blanked the opening off using a wooden plank. But since it is not 100% air-tight, there is some resistance coeff. associated with this section. Can someone please point me to the correct source to look up to calculate the resistance coefficient for this section. I was looking in ASHRAE 1992, but could not find anything relevant.